public static double CalcSunDeclin(double ObliqCorr, double SunAppLong)
{
double SunDeclin = Calc.degree(Math.Asin(Math.Sin(Calc.rad(ObliqCorr)) *
Math.Sin(Calc.rad(SunAppLong))));
return(SunDeclin);
}
public static double CalcSolarZenith(double RemoteLat, double SunDeclim, double HourAngle)
{
double SolarZenith = Calc.degree(Math.Acos(Math.Sin(rad(RemoteLat)) *
Math.Sin(rad(SunDeclim)) + Math.Cos(rad(RemoteLat)) *
Math.Cos(rad(SunDeclim)) * Math.Cos(rad(HourAngle))));
return(SolarZenith);
}
public static double CalcEqofTime(double varY, double GeomMeanLongSun, double GeomMeanAnomSun, double EccentEarthOrbit)
{
double EqofTime = 4 * Calc.degree(varY * Math.Sin(2 * Calc.rad(GeomMeanLongSun)) - 2 * EccentEarthOrbit
* Math.Sin(Calc.rad(GeomMeanAnomSun)) + 4 * EccentEarthOrbit * varY * Math.Sin(Calc.rad(GeomMeanAnomSun))
* Math.Cos(2 * Calc.rad(GeomMeanLongSun)) - 0.5 * varY * varY * Math.Sin(4 * Calc.rad(GeomMeanLongSun)) - 1.25
* EccentEarthOrbit * EccentEarthOrbit * Math.Sin(2 * Calc.rad(GeomMeanAnomSun)));
return(EqofTime);
}
